Patents by Inventor Walter A. Mackiewicz

Walter A. Mackiewicz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hierarchical database conversion with conditional write
    Patent number: 4908759
    Abstract: A process for transitioning a hierarchical input database to create a hierarchical output database. The processing occurs generally in two stages. During the first stage, information contained in user-specified driver tables is utilized to extract only pertinent data from the input database and thereby produce intermediate data in a form accessible by the second stage. During the second stage, information from the driver tables is applied to the intermediate data to map this data to the required output form representative of the hierarchical output database. With this processing approach, the driver tables are derived and then maintained independently of underlying software that executes under control of the driver tables. A database conversion is efficiently effected by preparing the driver tables and then invoking execution of the common software embodying the extracting and mapping subprocesses.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: March 13, 1990
    Assignee: Bell Communications Research, Inc.
    Inventors: Everett L. Alexander, Jr., Allan R. Carlin, Alice L. Fiore, Walter A. Mackiewicz